// Jubatus: Online machine learning framework for distributed environment
// Copyright (C) 2011 Preferred Infrastructure and Nippon Telegraph and Telephone Corporation.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

#include <string>
#include <map>

#include "string_filter.hpp"

using namespace std;

namespace {
using namespace jubatus::fv_converter;

class my_filter : public string_filter {
 public:
  void filter(const std::string& input, std::string& output) const {
    output = input;
    for (size_t i = 0; i < output.size(); ++i) {
      if (output[i] == '-')
        output[i] = ' ';
    }
  }
};

}

extern "C"{

string_filter* create(const map<string, string>& params) {
  return new my_filter();
}

}
